Temporary binder.



110.719,063. PATENTBD 11111.27, 1903..

E. A. TRUSSELL.

TEMPGRARY BINDER. APPLICATION FILED "imm 4, 1902.

l0 MODEL.

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llnuirien Starts Partnr OFFICE.

EMORY A. TRUSSELL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO SIEBER du TRUS- SELL MFG. COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION.

TEMPORARY BINDER.

PECIFIGAIION forming part of Letters Patent No. 719,063, dated January 27, 1903. Application filed June 4, 1902. Serial No. 110.137. (No model.)

To all whom, t may concern:

Be it known that I, EMORY A. TRUssnLL, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Temporary Binders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

1o My invention relates to that class of looseleaf-holding binders in which a sheet-holding frame is used that is provided with archprongs that 4receive the loose sheets; and, briefly stated, the invention consists in a fiexible insertion member interposed between the cover-boards of a binder whereby when the binder is opened movement is imparted to the hinged members of the sheet-holding frame to increase the dimensions of the arch of the zo sheet-holding prongs, so that the loose sheets held by the binder may be readily shifted on the prongs owing to the production of the widened area of the arches.

The invention consistsin features of novelty hereinafter fully described, and pointed out in the claims. Figure I is a perspective view of a binder constructed in accordance with my improvement. Fig. II is an end view of the binder, 5o showing the parts in the condition assumed when loose sheets are placed therein or re- 1moved therefrom. Fig. III is an end view of the binder in ilat open condition. Fig. IV is an end view of the binder in closed condition. l I designate the cover-boards of the binder that are united by a back 2. The sheet-holding frame that is connected to the coverboards l is composed of a pair of bars 3, having hinge-arms 4 at their ends that are united 4o by pivot-pins 6 designates the arch-prongs that are carried by the bars 3 and are adapted to overlap each other and to receive the loose sheets placed thereon in a well-known manner, as

is usual in the use of binders of the description to which my invention relates.

The bars 3 of the sheet-holding frame are each provided at their ends with outtnrned ears 7 that are adapted to receive hinge-pins 5o S, by which the sheet-holding frame is swingingly connected to the cover-boards of the binder.

9 designates U -shaped strips applied to the inner edges of the cover-boards 1 and which are adapted to receive the hinge-pins 8, that are passed through the ears 7 of the bars 3.

10 designates a flexible insertion member, preferably of cloth, that is iixed to the coverboards l and extended across the space between said cover-boards at the rear of the 6o sheet-holding frame of the binder. The edges of the insertion member 10 are attached to the cover-boards by any suitable means, such as by pasting them thereto, and the insertion member passes over the inner edges of the strips 9 and therefrom back of the sheet-holding-frame bars 3, where it is in a position to bear against said bars.

In the practical use ot the binder the operation of the parts is as follows: On the 7o opening of the binder the insertion member IO is drawn taut by the spreading apart of the cover-boards l, with the result that the frame-bars 3 are caused to move upwardly and inwardly toward each other, as seen in Fig. III, thereby throwing the arch-prongs G in outwardly directions and increasing the dimensions of the arches. The enlarging or the arches formed by the arch-prongs affords increased area of the arches, thereby provid- 8o ing increased space for the movement of the loose sheets positioned on the arch-prongs, so that they may be moved to and fro in the binder when open with the greatest of freedom and without danger of their catching against each other or becoming torn in their movement. The flexible strip l0 also operates to raise the center of the arc of the sheetholding prongs above the line of the pivoted ears when the covers are flat open, so that 9o when the covers are moved laterally toward each other the center of the arc of the sheetholding prongs is compelled to rise, thereby causing the arch-prongs to move apart for the insertion or removal of sheets. 9 5

I claim as my invention- 1. In a temporary binder, the combination of a pair of cover-boards, a sheet-holding frame, and a flexible insertion member connected to said cover-boards and adapted to roo bear in a taut condition against the rear of said sheet-holding frame when the binder is opened, substantially as described.

2. In a temporary binder, the combination of a pair of cover-boards, a sheet-holding frame comprising a pair of hinged members and arch-prongs, and a exible insertion member connected to said cover-boards and arranged in the rear of said hinged frame members, said insertion member being adapted to bear in a taut condition against the rear of said frame members when the binder is in opened condition, substantially as and for the purpose set forth. l

3. In a temporary binder7 the combination 

